What is the statute of limitations for outstanding invoices?

Hello. I am a Maryland barred attorney and practice in this area of law.  The general statute of limitations in this state is three years, but this may be extended to twelve years for certain contracts under seal.  Note that this is general information and the specific facts of your situation may affect how the law applies to you.  With any pending litigation, you are encouraged to seek the advice of an attorney in your area.